I received the executive chair 2 days after I ordered it.  WOW!  When I took the parts out of the box, I could not fine any assembly instructions.  I called Wayfair and got David Fox on the phone.  He researched the model number and e-mailed me the instructions while we were on the phone.  Instructions were easy to follow.  When I took the last part (the backrest) out of its plastic bag, there was the instruction book.  The book is a dark green and blends in with the backrest.

I am 91 and it took me less than an hour to assemble the chair by myself.  I am sitting on it now and I love it.
David Y. Smith